Abstract: The invention relates to a polyurethane dispersant resin having a polyurethane backbone having pendant hydrophilic polyalkylene oxide based side groups, the pendant side groups being linked to the polyurethane backbone via covalent bonds, and wherein the content of polyalkylene oxide in the polyurethane dispersant resin is at least 45% by weight, characterized in that the polyurethane additionally has pendant hydrophobic side groups which are linked to the polyurethane backbone via covalent bonds.

Abstract: The invention relates to a polyurethane dispersant resin having a polyurethane backbone having pendant hydrophilic polyalkylene oxide based side groups, the pendant side groups being linked to the polyurethane backbone via covalent bonds, and wherein the content of polyalkylene oxide in the polyurethane dispersant resin is at least 45% by weight, characterized in that the polyurethane additionally has pendant hydrophobic side groups which are linked to the polyurethane backbone via covalent bonds.

Abstract: The invention pertains to water-dissipatable polymers comprising lipophilic polymers having pendant sulfonic acid salt groups and, optionally, pendant nonionic groups, methods of making such water-dissipatable polymers and the use of such polymers in aqueous systems, including aqueous coating compositions. The invention also pertains to addition polymer polyols having such pendant sulfonic acid salt groups and, optionally, pendant nonionic groups, their methods of manufacture and their use in aqueous systems, including aqueous coating compositions. The polymers of the invention may be used as, for example, binders, emulsifying agents and dispersing agents in aqueous systems, especially aqueous coating compositions.

Abstract: Branched hydroxyl-functional polyester resin having an average hydroxyl functionality of >2, a hydroxyl number of 25 to 300 mg KOH/g, and a number average molecular weight within the range of from 500 to 3,000, which polyester resin comprises polyalkylene oxide groups and, optionally, sulphonate groups, wherein the polyester resin comprises the reaction product of 1) a mixture of carboxylic acids comprising 50 to 80 mole % of an m- and/or p-aromatic and/or cycloaliphatic dicarboxylic acid, 20 to 50 mole % of an aliphatic dicarboxylic acid and/or aliphatic monocarboxylic acid with more than 6 carbon atoms, and, optionally, a tri- or higher-functional acid, and 2) a mixture of alcohols comprising an aliphatic diol with at least 4 carbon atoms and/or a cycloaliphatic diol with at least 4 carbon atoms, a C1-C4 alkoxy polyalkylene oxide glycol and/or C1-C4 alkoxy polyalkylene oxide 1,3-diol having a number average molecular weight of 500 to 3,000, and, optionally, a tri- or higher-functional polyalcohol, w

Abstract: Aqueous-based cross-linkable binder composition comprising (A) an aqueous dispersion of a polyester-polyacrylate hybrid resin 50 to 90 wt. % of which is composed of polyester and 10 to 50 wt. % of which is composed of polyacrylate, which hybrid resin is obtainable by grafting a composition of radically polymerisable unsaturated monomers onto a partially unsaturated hydroxy-functional polyester resin, and (B) an organic polyisocyanate, wherein the partially unsaturated hydroxy-functional polyester is obtainable by reaction of a mixture of polycarboxylic and, optionally, monocarboxylic acids, and one or more (cyclo)aliphatic alcohols, wherein 0.

Abstract: The invention pertains to water-dissipatable polymers comprising lipophilic polymers having pendant sulfonic acid salt groups and, optionally, pendant nonionic groups, methods of making such water-dissipatable polymers and the use of such polymers in aqueous systems, including aqueous coating compositions. The invention also pertains to addition polymer polyols having such pendant sulfonic acid salt groups and, optionally, pendant nonionic groups, their methods of manufacture and their use in aqueous systems, including aqueous coating compositions. The polymers of the invention may be used as, for example, binders, emulsifying agents and dispersing agents in aqueous systems, especially aqueous coating compositions.

Abstract: The present invention provides a water borne two-component cross-linkable composition based on an aqueous dispersion of an at least partially neutralized amino-functional epoxy derived polymer and a compound comprising at least two acetoacetate groups or acetoacetamide groups or a combination of the two groups. This composition provides coatings with high gloss, good water and solvent borne resistance, and high hardness. This composition also provides adhesives with high adhesion power.

Abstract: An aqueous coating composition comprising a mixture of 90 to 99 wt. % of a filmforming binder composition comprising an alkali non-swellable core-shell addition polymer dispersion (I), and 1-10 wt. % of a rheology modifying addition polymer dispersion (II). It is required that the total amount of (meth)acrylic acid in 100 parts of the total addition polymer (I) is less than 1.75 wt. %. The aqueous coating composition of the present invention can be advantageously used as a base coat in a base coat/clear coat system. This use shows a decrease in strike-in effect compared to previous known base coat/clear coat systems.

Abstract: Aqueous-based cross-linkable binder composition comprising

Abstract: Branched hydroxyl-functional polyester resin having an average hydroxyl functionality of >2, a hydroxyl number of 25 to 300 mg KOH/g, and a number average molecular weight within the range of from 500 to 3,000, which polyester resin comprises polyalkylene oxide groups and, optionally, sulphonate groups, wherein the polyester resin comprises the reaction product of

Abstract: The present invention provides a water borne two-component cross-linkable composition based on an aqueous dispersion of an at least partially neutralised amino-functional epoxy derived polymer and a compound comprising at least two acetoacetate groups or acetoacetamide groups or a combination of the two groups. This composition provides coatings with high gloss, good water and solvent borne resistance, and high hardness. This composition also provides adhesives with high adhesion power.

Abstract: The invention relates to an aqueous coating composition comprising a mixture of 90 to 99 wt. % of a filmforming binder composition comprsing an alkali non-swellable core-shell addition polymer dispersion (I), and 1-10 wt. % of a rheology modifying addition polymer dispersion (II). It is required that the total amount of (meth)acrylic acid in 100 parts of the total addition polymer (I) is less than 1.75 wt. %. The aqueous coating composition of the present invention can be advantageously used as a base coat in a base coat/clear coat system. This use shows a decrease in strike-in effect compared to previous known base coat/clear coat systems.

Abstract: The invention relates to an air-drying aqueous polymer dispersion based on a core/shell polymer having an alkyd resin in the core and an addition polymer grafted thereon, with 50-90 weight percent of the core/shell polymer being composed of alkyd resin and 50-10 weight percent being composed of addition polymer, and with the alkyd resincontaining more than 40 and up to 80 weight percent of unsaturated fatty acid, at least 5 mole percent of which contains conjugated double bonds,having an acid number of not more than 5 (mg KOH/g), andhaving a number average molecular weight in the range of 400 to 5000, and with the addition polymer having an acid number in the range of 40 to 200 (mg KOH/g).The aqueous polymer dispersions according to the invention were found to be highly stable and to have a comparatively low viscosity, even at concentrations of 40 weight percent and above.

Abstract: A water-dispersible hybrid polymer comprises an ethylenically unsaturated polyurethane (core) onto which an addition polymer chain (shell) has been provided by polymerization, with the unsaturation of the polyurethane being achieved by the incorporation therein of dimethyl-m-isopropenyl benzyl isocyanate, and the acid number of the shell polymer being in the range of 30 to 120 (mg KOH/g). Aqueous dispersions of these hybrid polymers are pre-eminently suitable for use in aqueous coating compositions of the so-called clear coat type, particularly when stringent demands are imposed with regard to the acid resistance of the topcoats applied using these compositions.

Abstract: A water-dispersible hybrid polymer of a core/shell structure is provided which is based upon (A) a polymer (core) of a mercapto-functionalized poly(epoxyester) onto which (B) at least one addition polymer-based chain (shell) has been grafted via the addition polymerization of free-radically polymerizable monomers in the presence of the mercapto-functionalized poly(epoxyester). Also provided are aqueous dispersions of these hybrid polymers and coating compositions therefrom, which coating compositions are especially suited for use as clearcoats and surfacers.

Abstract: The invention provides a stabilizer for an aqueous dispersion of an acrylic polymer that is obtained by successive copolymerization in random order of a monomer mixture A consisting of particular amounts of styrene or methyl styrene, acrylic acid or methacrylic acid, and optionally another comonomer, and a monomer mixture B consisting of particular amounts of styrene or methyl styrene, a (cyclo)alkyl methacrylate having 1-12 carbon atoms in the (cyclo)alkyl group, and optionally another comonomer, in the presence of a particular amount of a polybutadiene having a number average molecular weight of 1500-10000, the carboxylic acid groups from the (meth)acrylic groups being at least partly ionized. The invention also pertains to an aqueous dispersion of an acrylic polymer thus stabilized.

Abstract: The present invention pertains to a dispersion in an organic liquid of an acrylate-based and/or methacylate-based addition polymer stabilized by a graft copolymer of a polybutadiene with particular monomer components grafted thereon. The present invention also pertains to coating compositions based upon such a dispersion and to a process of coating a substrate with the coating composition. Finally, the present invention relates to a process for the preparation of the stabilizer for the dispersion.

Abstract: Aqueous coating composition having a basis of a dispersion of an addition polymer (acting as binder), particularly as a base coat which is to be covered with a clear coat. To obtain layers having improved mechanical properties use is made of an addition polymeer which is obtained in two or more steps by emulsion polymerization. In a first step copolymerization is effected of 60-95 parts b.w., based on 100 parts b.w. of addition polymer, of a monomer mixture comprising (A) 65-100 mol % of a mixture of 60-100 mole % of a (cyclo)alkyl (meth)acrylate, in which the (cyclo)alkyl group contains 4-12 C-atoms, and 0-40 mole % of a di(cyclo)alkyl maleate and/or a di(cyclo)alkyl fumarate, in which the (cyclo)alkyl groups contain 4-12 C-atoms, and 0-35 mole % of another, copolymerizable, monoalkylenically unsaturated monomer, and in a subsequent step of 5-40 parts b.w., based on 100 parts b.w.

Abstract: The invention provides a stabilizer for an aqueous dispersion of an acrylic polymer that is obtained by successive copolymerization in random order of a monomer mixture A consisting of particular amounts of styrene or methyl styrene, acrylic acid or methacrylic acid, and optionally another comonomer, and a monomer mixture B consisting of particular amounts of styrene or methyl styrene, a (cyclo)alkyl methacrylate having 1-12 carbon atoms in the (cyclo)alkyl group, and optionally another comonomer, in the presence of a particular amount of a polybutadiene having a number average molecular weight of 1500-10000, the carboxylic acid groups from the (meth)acrylic groups being at least partly ionized. The invention also pertains to an aqueous dispersion of an acrylic polymer thus stabilized.

Abstract: The invention pertains to an aqueous dispersion of an acrylic polymer stabilized by a compound obtained by copolymerizing specific amounts of (1) styrene and/or methyl styrene, (2) (meth)acrylic acid and/or an amino group-containing (meth) acrylic ester, and optionally another comonomer, in the presence of a specific polybutadiene, the carboxylic acid groups and/or amino groups being at least partly ionized. The invention also pertains to a coating composition based on such aqueous dispersion and to a substrate coated with said coating composition. Finally, the invention also relates to a process for the preparation of the stabilizer of the aqueous dispersion of an acrylic polymer.